Yeah that seems like great bang for the buck. I'll try that one and if it works out I will use it till it breaks [EDIT: or try one of the mentioned ones and send it back within 2 weeks if not satisfied]. I read reviews and if it works out I will go for either BakkerElkhuizen Evoluent D Wireless (probably this one), R-Go Tools: Break HE, or Logitech MX Vertical.
Trackball attains too much dirt (heck, even mice do). Maybe BakkerElkhuizen ErgoSlider Plus would also work.
The evoluent mouse often pop up in this space, quite expensive. Not sure they are worth the price. I had a different r-go mouse in for a small test, felt OK, but not better then the cherry. The Logitech MX Vertical should be the mainstream option, but Logitech has quality issues, specifically by using switches that double click after a while. For the price not okay, even if it can happen with many different mice as well.
I really liked the cherry mouse given the alternatives I had at the time ;)
Supposedly the scroll wheel gets dirty quickly, and requires cleaning with contact spray and then some lube. It also has no support for pink apparently. People are claiming defect after X months. Either way, in EU I get 2 years warranty and the price warrants trying it out.
I did never need contact spray with it, during a few years now. The pinky finger might depend on hand size :)
I did have a broken button though, claimed warranty and got the money back, afterwards I soldered in a new button. Was easy enough, but I hope it does not happen too often! https://www.onli-blogging.de/2103/Kaputten-Maustaster-auswec... was my writeup.
Useful to know: Cherry has an additional manufacturer warranty for that mouse, which I claimed with the vendor.
Trackball attains too much dirt (heck, even mice do). Maybe BakkerElkhuizen ErgoSlider Plus would also work.